import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: WHY
 * Date: 2023-06-09
 * Time: 18:16
 */
@WebServlet("/getParameter")
public class GetParameter  extends HttpServlet {
    //前端通过query string传递username和password两个属性

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        String username=req.getParameter("username");
        if(username==null){
            System.out.println("username这个key在query string不存在");

        }
        String password=req.getParameter("password");
        if(password==null){
            System.out.println("password这个key在query string不存在");
        }
        System.out.println("username="+username+",password="+password);
        resp.getWriter().write("ok");

    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        req.setCharacterEncoding("utf8");
       //前端通过body,以form表单的格式,将username和password传给服务器
        String username=req.getParameter("username");
        String password=req.getParameter("password");
        if(username==null){
            System.out.println("username这个key在body 不存在");
        }
        if(password==null){
            System.out.println("password这个key在body不存在");
        }

        System.out.println("username"+username+",password"+password);

        resp.getWriter().write("ok");




    }
}
